1 // SPDX-License-Identifier: GPL-2.0+
3 * comedi/drivers/ni_labpc_pci.c
4 * Driver for National Instruments Lab-PC PCI-1200
5 * Copyright (C) 2001, 2002, 2003 Frank Mori Hess <fmhess@users.sourceforge.net>
10 * Description: National Instruments Lab-PC PCI-1200
11 * Devices: [National Instruments] PCI-1200 (ni_pci-1200)
12 * Author: Frank Mori Hess <fmhess@users.sourceforge.net>
15 * This is the PCI-specific support split off from the ni_labpc driver.
17 * Configuration Options: not applicable, uses PCI auto config
23 #include <linux/module.h>
24 #include <linux/interrupt.h>
26 #include "../comedi_pci.h"
30 enum labpc_pci_boardid
{
34 static const struct labpc_boardinfo labpc_pci_boards
[] = {
35 [BOARD_NI_PCI1200
] = {
36 .name
= "ni_pci-1200",
44 /* ripped from mite.h and mite_setup2() to avoid mite dependency */
45 #define MITE_IODWBSR 0xc0 /* IO Device Window Base Size Register */
46 #define WENAB BIT(7) /* window enable */
48 static int labpc_pci_mite_init(struct pci_dev
*pcidev
)
50 void __iomem
*mite_base
;
53 /* ioremap the MITE registers (BAR 0) temporarily */
54 mite_base
= pci_ioremap_bar(pcidev
, 0);
58 /* set data window to main registers (BAR 1) */
59 main_phys_addr
= pci_resource_start(pcidev
, 1);
60 writel(main_phys_addr
| WENAB
, mite_base
+ MITE_IODWBSR
);
62 /* finished with MITE registers */
67 static int labpc_pci_auto_attach(struct comedi_device
*dev
,
68 unsigned long context
)
70 struct pci_dev
*pcidev
= comedi_to_pci_dev(dev
);
71 const struct labpc_boardinfo
*board
= NULL
;
74 if (context
< ARRAY_SIZE(labpc_pci_boards
))
75 board
= &labpc_pci_boards
[context
];
78 dev
->board_ptr
= board
;
79 dev
->board_name
= board
->name
;
81 ret
= comedi_pci_enable(dev
);
85 ret
= labpc_pci_mite_init(pcidev
);
89 dev
->mmio
= pci_ioremap_bar(pcidev
, 1);
93 return labpc_common_attach(dev
, pcidev
->irq
, IRQF_SHARED
);
96 static void labpc_pci_detach(struct comedi_device
*dev
)
98 labpc_common_detach(dev
);
99 comedi_pci_detach(dev
);
102 static struct comedi_driver labpc_pci_comedi_driver
= {
103 .driver_name
= "labpc_pci",
104 .module
= THIS_MODULE
,
105 .auto_attach
= labpc_pci_auto_attach
,
106 .detach
= labpc_pci_detach
,
109 static const struct pci_device_id labpc_pci_table
[] = {
110 { PCI_VDEVICE(NI
, 0x161), BOARD_NI_PCI1200
},
113 MODULE_DEVICE_TABLE(pci
, labpc_pci_table
);
115 static int labpc_pci_probe(struct pci_dev
*dev
,
116 const struct pci_device_id
*id
)
118 return comedi_pci_auto_config(dev
, &labpc_pci_comedi_driver
,
122 static struct pci_driver labpc_pci_driver
= {
124 .id_table
= labpc_pci_table
,
125 .probe
= labpc_pci_probe
,
126 .remove
= comedi_pci_auto_unconfig
,
128 module_comedi_pci_driver(labpc_pci_comedi_driver
, labpc_pci_driver
);
130 MODULE_DESCRIPTION("Comedi: National Instruments Lab-PC PCI-1200 driver");
131 MODULE_AUTHOR("Comedi https://www.comedi.org");
132 MODULE_LICENSE("GPL");